Created
May 28, 2021 17:29
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[Question] How to maintain same bottom sheet state between multiple scaffolds?
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import 'package:flutter/material.dart'; | |
void main() => runApp(NestedBottomSheetApp()); | |
class NestedBottomSheetApp extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
home: Scaffold( | |
appBar: AppBar( | |
title: Text('Home'), | |
), | |
body: Builder( | |
builder: (context) => ElevatedButton( | |
child: Text('Go To Details'), | |
onPressed: () { | |
Navigator.of(context).push<dynamic>( | |
MaterialPageRoute<dynamic>( | |
builder: (context) => NestedPage(), | |
), | |
); | |
}, | |
), | |
), | |
bottomSheet: MyDraggableSheet(), | |
), | |
); | |
} | |
} | |
class MyDraggableSheet extends StatefulWidget { | |
@override | |
_MyDraggableSheetState createState() => _MyDraggableSheetState(); | |
} | |
class _MyDraggableSheetState extends State<MyDraggableSheet> { | |
int _totalPressed = 0; | |
@override | |
Widget build(BuildContext context) { | |
return DraggableScrollableSheet( | |
minChildSize: 0.2, | |
initialChildSize: 0.2, | |
expand: false, | |
builder: (context, scrollController) { | |
return Container( | |
width: double.infinity, | |
color: Colors.blue.shade100, | |
child: ListView.builder( | |
controller: scrollController, | |
itemCount: 50, | |
itemBuilder: (context, index) => TextButton( | |
onPressed: () => setState(() => _totalPressed++), | |
child: Text('Button $index | all pressed: $_totalPressed'), | |
), | |
), | |
); | |
}, | |
); | |
} | |
} | |
class NestedPage extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: AppBar( | |
title: Text('Details'), | |
), | |
body: Center( | |
child: ElevatedButton( | |
child: Text('Go Back'), | |
onPressed: Navigator.of(context).pop, | |
), | |
), | |
bottomSheet: MyDraggableSheet(), | |
); | |
} | |
} |
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